PT-2026-55654 · Gitea · Gitea Open Source Git Server

Adamkorcz · Published 2026-07-03 · Updated 2026-07-03 · CVE-2026-58421

Positive Technologies (AI Summary)

Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)

Description An unauthenticated Regular Expression Denial of Service (ReDoS) exists due to improper pattern matching within the CODEOWNERS file processing. This allows a remote attacker to cause a denial of service by providing a specially crafted pattern that triggers excessive CPU consumption during the matching process.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2026-58421

Affected Products

Gitea Open Source Git Server

References · 6

• https://github.com/go-gitea/gitea/security/advisories/GHSA-v96j-25gv-g2w9 · Vendor Advisory
• https://github.com/go-gitea/gitea/pull/38011 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-58421 · Security Note
• https://github.com/go-gitea/gitea/releases/tag/v1.26.4 · Note
• https://blog.gitea.com/release-of-1.26.3-and-1.26.4 · Note
• https://twitter.com/CVEnew/status/2073191222496158101 · Twitter Post